<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片试图区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <!-- 搜索框 -->
          <el-input
            @clear="getUserList"
            class="input-with-select"
            clearable
            placeholder="请输入内容"
            v-model="queryInfo.query"
          >
            <el-button @click="getUserList" icon="el-icon-search" slot="append"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button @click="dialogVisible = true" type="primary">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <!-- scope.row 是这行的数据信息 -->
            <el-switch @change="userStateChanged(scope.row)" v-model="scope.row.mg_state"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              @click="showEditDialog(scope.row.id)"
              icon="el-icon-edit"
              size="mini"
              type="primary"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              @click="removeById(scope.row.id)"
              icon="el-icon-delete"
              size="mini"
              type="danger"
            ></el-button>
            <!-- 角色分配 -->
            <el-tooltip
              :enterable="false"
              class="item"
              content="分配角色"
              effect="dark"
              placement="top-start"
            >
              <el-button
                @click="setRoles(scope.row)"
                icon="el-icon-setting"
                size="mini"
                type="warning"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        :current-page="queryInfo.pagenum"
        :page-size="queryInfo.pagesize"
        :page-sizes="[1, 2, 5, 10]"
        :total="total"
        @current-change="handleCurrentChange"
        @size-change="handleSizeChange"
        layout="total, sizes, prev, pager, next, jumper"
      ></el-pagination>
    </el-card>
    <!-- 分配角色对话框 -->
    <el-dialog
      :visible.sync="showSetRolesdialogVisible"
      @close="setRoleDialofClosed"
      title="提示"
      width="50%"
    >
      <div>
        <p>当前的用户: {{userInfo.username}}</p>
        <p>当前的角色: {{userInfo.role_name}}</p>
        <p>
          分配新的角色:
          <el-select placeholder="请选择" v-model="sclectedRoleId">
            <el-option
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
              v-for="item in rolesList"
            ></el-option>
          </el-select>
        </p>
      </div>
      <span class="dialog-footer" slot="footer">
        <el-button @click="showSetRolesdialogVisible = false">取 消</el-button>
        <el-button @click="saveRoleInfo" type="primary">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 添加用户对话框 -->
    <el-dialog :visible.sync="dialogVisible" @close="addDialogClosed" title="添加用户" width="50%">
      <!-- 内容主题区域 -->
      <el-form :model="addForm" :rules="addFormRules" label-width="70px" ref="addFormRef">
        <el-form-item label="用户名" prop="username">
          <el-input clearable v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input clearable v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input clearable v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input clearable v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span class="dialog-footer" slot="footer">
        <el-button @click="dialogVisible = false">取 消</el-button>
        <el-button @click="addUser" type="primary">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改对话框 -->
    <el-dialog
      :visible.sync="editDialogVisible"
      @close="editDialogClosed"
      title="修改用户信息"
      width="50%"
    >
      <!-- 内容主题区域 -->
      <el-form :model="editForm" :rules="editFormRules" label-width="70px" ref="editFormRef">
        <el-form-item label="用户名">
          <el-input disabled v-model="editForm.username"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span class="dialog-footer" slot="footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button @click="modify()" type="primary">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data () {
    // 验证邮箱的规则
    const checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法邮箱'))
    }
    // 验证手机号的规则
    const checkMobile = (rule, value, cb) => {
      const regMoblie = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMoblie.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法手机号'))
    }
    return {
      // 获取用户列表参数对象
      queryInfo: {
        query: '',
        // 当前页面
        pagenum: 1,
        // 当前没页显示的数据据条数
        pagesize: 5
      },
      userlist: [],
      total: 0,
      // 添加用户表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 控制添加用户对话框的显示隐藏
      dialogVisible: false,
      // 控制修改对话框的显示隐藏
      editDialogVisible: false,
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '用户名的长度在3~10个字符之间', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 16, message: '用户名的长度在6~16个字符之间', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱地址', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      editForm: {},
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱地址', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      showSetRolesdialogVisible: false,
      userInfo: {},
      rolesList: [],
      sclectedRoleId: ''
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败！')
      }
      this.userlist = res.data.users
      this.total = res.data.total
      console.log(res)
    },
    // 监听pageSize 改变事件
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听 页码值 改变事件 
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    async userStateChanged (userinfo) {
      console.log(userinfo)
      const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.errot('更新用户状态失败！')
      }
      this.$message.success('更新用户成功!')
    },
    addDialogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        // console.log(valid)
        if (!valid) return
        // 可以发起请求添加用户的网络请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        // y隐藏添加用户的对话框
        this.dialogVisible = false
        // 重新获取用户的列表数据
        this.getUserList()
      })
    },
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },
    async showEditDialog (id) {
      this.editDialogVisible = true
      // console.log(id)
      const { data: res } = await this.$http.get(`users/${id}`)
      console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败！')
      }
      this.editForm = res.data
    },
    modify () {
      // 提交时的预验证
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        // 发送请求修改用户信息
        const { data: res } = await this.$http.put(`users/${this.editForm.id}`, { email: this.editForm.email, mobile: this.editForm.mobile })
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败')
        }
        this.editDialogVisible = false
        this.getUserList()
        this.$message.success('更新用户成功')
      })
    },
    async removeById (id) {
      // 弹框询问是否删除
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      // 如果用户确认删除 则返回值为字符串 confirm
      // 如果取消了删除  则返回字符串cancel
      if (confirmResult !== 'confirm') {
        return this.$message.info('已经取消了删除')
      }
      const { data: res } = await this.$http.delete(`users/${id}`)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败')
      }
      this.getUserList()
      this.$message.success('删除成功')
    },
    async setRoles (userInfo) {
      this.userInfo = userInfo
      this.showSetRolesdialogVisible = true
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败！')
      }
      this.rolesList = res.data
    },
    async saveRoleInfo () {
      if (!this.sclectedRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, {
        rid: this.sclectedRoleId
      })
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败！')
      }
      this.$message.success('更新角色成功！')
      this.getUserList()
      this.showSetRolesdialogVisible = false
    },
    setRoleDialofClosed () {
      this.sclectedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang="less" scoped>
</style>